Finding the Fourth Proportional to 269,427.30, 404,108.55 and 111,639.30

Step by Step Solution

1. Step 1: Write the proportion equation
   269,427.30 : 404,108.55 = 111,639.30 : x
2. Step 2: Convert to fraction form
   269,427.30/404,108.55 = 111,639.30/x
3. Step 3: Cross multiply
   269,427.30x = 404,108.55 × 111,639.30
4. Step 4: Simplify right side
   269,427.30x = 45,114,395,646.02
5. Step 5: Solve for x
   x = 45,114,395,646.02/269,427.30
6. Step 6: Final answer
   x = 167,445.52